| 초록 |
There are many efforts to achieve flexible or stretchable electronics. A decrease in the conjugated structure of semiconducting polymer chains can degrade the π-overlap driven chain rigidity and conductivity, which are important factors to enhance the intra- and inter-molecular charge-carrier transport. P3HT as a typical semiconducting polymer yield high hole mobilities in solution-based FETs when it has a well-define regioregular (RR) sequence , in comparison to a less-defined (regiorandom, rr) system. Here, we simply prepare solutions including a minor portion of RR PHT and a major portion of rr PHT, which were ultrasound-treated. The ordered structures and electrical properties of the resulting films are systematically investigated using AFM, GIXD, current-voltage test. The P3HT blend shows significant enhancement in charge-carrier mobility and stretchability of the FETs, which attributed the better miscibility and conductivity between the semiconducting polymer chains. |
